31818077434 has 32 divisors (see below), whose sum is σ = 56318141376. Its totient is φ = 13291403520.

The previous prime is 31818077413. The next prime is 31818077441. The reversal of 31818077434 is 43477081813.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180127 + ... + 309970.

It is an arithmetic number, because the mean of its divisors is an integer number (1759941918).

Almost surely, 2^31818077434 is an apocalyptic number.

31818077434 is a deficient number, since it is larger than the sum of its proper divisors (24500063942).

31818077434 is a wasteful number, since it uses less digits than its factorization.

31818077434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490350.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 31818077434 in words is "thirty-one billion, eight hundred eighteen million, seventy-seven thousand, four hundred thirty-four".